Question

enrique and levi together have 386 trading cards. if enruque has 221 tradibg cards, how many does lwvi have?

Answer 1

enrique+levi=386
enrique=221
subsitute
221+levi=386
subtract 221 frm botoh sides
levi=386-221
levi=165

levi has 165 cards

Answer 2

If they have 386 cards altogether, subtract one of the numbers that you know make up the sum. In this case, it'd be 221. So, you'd do 386-221. Which would be 165.